G'day Guys

Today I bought a K&N air filter Part no. 33-2402, went to install it and would not fit
the air housing, totally cheesed off, its original price was $161 but was reduced to $86

Also when i'd taken out the original filter it was really dirty with black gunk in various parts. The car has 44,600Km's. im also from Canberra..

Do any members have the K&N standard filter installed and what's the correct part for our cars.
The guys at Repco said he always has problems with Honda car air filters not fitting correctly.
Im also wondering is this a useful thing to replace or just keep the original filter and stuff it..

Please could you help me out, many thanks for any replies